Uncanny X-Men: First Class #1

Nightcrawler saves two children from falling bricks but is attacked by a mob for his appearance. When the Inhumans visit the mansion, Kurt and Peter travel back to their home on the Moon and Nightcrawler is enamored of a society where difference is celebrated. When he observes normal looking children being transformed by the Terrigen Mist, however, Nightcrawler tries to put a stop to this abomination and is attacked for his sacrilege.